Home / 13,314.07-19,936.95-12,919.90

Finding the Fourth Proportional to 13,314.07, 19,936.95 and 12,919.90

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Solution

The fourth proportional to 13,314.07, 19,936.95 and 12,919.90 is: 19,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.07 : 19,936.95 = 12,919.90 : x
  2. Step 2: Convert to fraction form
    13,314.07/19,936.95 = 12,919.90/x
  3. Step 3: Cross multiply
    13,314.07x = 19,936.95 × 12,919.90
  4. Step 4: Simplify right side
    13,314.07x = 257,583,400.31
  5. Step 5: Solve for x
    x = 257,583,400.31/13,314.07
  6. Step 6: Final answer
    x = 19,346.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.